Community Greenhouse Gas Inventory
Explore Ann Arbor's Greenhouse Gas Inventory
Visit the Office of Sustainability and Innovations' Dashboard to explore Ann Arbor's 2023 GHG Inventory in detail.
Walk Through the GHG Inventory
Learn about the 2023 Community-Wide Greenhouse Gas Inventory with the video below:
Learn about the 2022 Community-Wide Greenhouse Gas Inventory with the video below:
Learn about the 2021 Community-Wide Greenhouse Gas Inventory with the video below:
Learn about the 2020 Community-Wide Greenhouse Gas Inventory with the video below:
What are greenhouse gases?
Greenhouse gases are gases that trap heat in the atmosphere, causing global warming and climate change. The community greenhouse gas inventory tracks the carbon dioxide, methane, and nitrous oxide emissions that occur when fossil fuels are combusted, organic material anaerobically decomposes, and other processes.
Why measure?
Tracking our community's greenhouse gas emissions lets us know our current impact on the climate, and our progress on reducing emissions to date. It also informs the design of the A2ZERO Climate Action Plan.
We measure emissions at the city level because cities create over 70% of global greenhouse gas emissions. But cities also represent an opportunity to reduce emissions through more efficient infrastructure and planning, providing residents with a better quality of life and lower carbon footprint than areas outside of cities.
Read more about the 2020 and 2019 community greenhouse gas inventory in our Greenhouse Gas Inventory Report:
GHG Inventory Calendar Year 2019 Report
GHG Inventory Calendar Year 2020 Report
Open Data
Read more about the methodology, assumptions, and data sources used to calculate the community-wide greenhouse gas inventory in our Greenhouse Gas Inventory Guide and spreadsheet.